Metallic receptacle and closure therefor



Feb. 10, 1931. v CORNELL 1:792279 METALLIC RECEPTAGLE AND CLOSURETHEREFOR 7 Filed Jan. 25, 1930 INVENTOR.

A4; A TTORNEY.

Patented p 10, 1931 UNITED STATES.

PATENT OFFICE PRODUCTS COMPANY, OF NILES, OHIO, A CORPORATION OF OHIOMETALLIC RECEITACLE .A ND CLOSURE THEREFOR Application filed January 25,1930. Serial' No. 423,334.

My invention is an improvement in metallic receptacles or containers,and relates more particularly to closures for the same and to means foreffecting a fluid tight seal between 5 the receptacle and the closure.

One of the objects of my invention is to enable metallic receptaclessuch as drums or barrels to be fitted with a full removable coverproviding a tight fluid proof sealbetween the cover and the receptacle,without the aid of tools. r

Another object of my invention is to insure a fluid tight seal betweenthe cover and the receptacle by, uniformly distributing the sealingpressure about the periphery of the cover and container.

,l A further object of the invention is to seal the cover in placeagainst unauthorized removal.

Other objects and advantages of my in vention will become more apparentfrom the following description of an embodiment thereof, reference beingmade to the accompanying drawing in which like reference characters areemployed to designate like parts throughout the same.

In the drawing Fig. 1 is a top plan view of an embodiment v of myinvention, showing the cover on the receptacle in fluid tight sealedrelation.

Fig. 2 is an enlarged fragmentary section taken on line 2-2 of Fig. 1.

Fig. 3 is a fragmentary plan view of the locking or clamping ringcontracted to seal the cover on the receptacle.

Fig. 4 is a view similar to Fig. 3 except that the ring is shown partlyexpanded as in removing the ring and cover from the recep tacle.

Fig. 5 is an elevation-of the locking or clamping ring looking in thedirection of the arrows in Fig. 3. T

My invention is particularly applicable to metallic containers orreceptacles such as barrels or drums and the like, which are providedwith a circumferential'bead at their open ends for supporting a coverand for reinforcement purposes.

Referring to the drawing, in which I have illustrated an embodiment ofmy invention,

the barrel or drum is indicated at 1. The upper edge of the container isrolled to form a peripheral bead 2 at the open end thereof. A cover 3com-prising a cupped member having a peripheral upwardly and outwardlyextending flange 4, is supported by the bead 2 in such a manner that thecupped portion of the cover may be telescoped for a short distancewithin the container, as illustrated in Fig. 2. Itwill be noted that aportion of the flange 4 is slightly arcuate in cross section to conformwith the approximate curvature of the upper surface of the bead, andthat the outer edge of the flange terminates at a point nearthat definedby'the greatestouter diameter of the bead. Although I have shown theflange extending to a point equal to the THE STEVENS METAL greatestouter diameter of the bead, I find that the flange may extend to a pointjust short thereof, it being sufiicient that the flange extendcompletely over the packing 5 between the flange and the bead. Thepacking may consist of an annulus of any suitable packing material, andI have found that an annulus of'flexible rubber tubing is verysatisfactory for this purpose.

. I have provided a simple means for removably securing the cover on thereceptacle to efiect a fluid tight seal between the same by exerting asubstantially uniform pressure on the cover and the bead in a directionsubstantially parallel to the axis of the container.

In the present embodiment this means includes a split contractiblechanneled ring 6 substantially U-shaped in cross section. The upper andlower "flange and bead engaging walls respectively of the ring extend insub-- stantially parallel planes only near their,

inner edges as shown in Fig.2.

Thus it will be seen that upon contractm the ring the flange will betightly presse against the packing 5 and the supporting substantiallyvertical pres- 8 near its ends. The lugs may be formed integrally withor separately of the r1ngsec-.,

tions and welded thereto in a plane lying in the upper inwardlyextending side walls of the ring sections. Each of the lugs is aperturednear its inner extremity.

In the illustration, I have shown levers 9 pivotally connected to thelugs 8 by, means ofpins 10 in the openings in these lugs. Links 11 arepivoted at one end to 'the lugs 7 by means of the pins 12 and at theirother ends \10 to the levers 9 at 13. It will be noted that the points13 lie between. the ring sections and a line drawn through therespective points 10 and 12, when the levers are moved to contract thering sections and seal the cover on the container. In this manneraccidental release of the levers from the locking position will beprevented. As the levers are moved to the position shown in Fig. 1 thering sections will be "drawn together laterally '20 to tightly press thecover against the packing andthe bead.

, When it is desired to seal the container against unauthorized opening,a tab 14 may be welded to the ring at-a point where its 2 opening 15will register with the openings in the levers 9 when the levers areswung toward the ring. The customary wire seal may be then inserted inthe openings and sealed in the usual manner.

I have illustrated a means contemplated by i this invention forexertinga lateral pressure between the rin and the side walls of thecover, to draw t e ring inwardly and more easily contract the rin aboutthe bead and flange. This means indludes arms 16 formed on each of thelevers 9'. The outer end of each of the arms is formed with a shoe 17,the outer or flange engaging wall of which is tapered slightly inwardlyand forwardly 40 as shown more clearly in Figs. 3 and 4.

By inclining this wall relative movement between the shoe and theflange, upon swinging the levers 9, will be more easily accomplished.The,arms 16 are of suflicient length so that the shoes 17 will engagethe flange under considerable lateral pressure and cause the ringsections 6 to be tightly contracted about the bead and flange when the,levers 9 are moved to the position in Fig. 3, thereby 5o exerting anduniformly distributing thesealing pressure about the flange and thebead.

In Fig. 4 I have shown. one of the levers 9 and the ring sections 6'inpartly opened po; sition to allow the shoe torelease the lateral aspressure on the flange and ring, By further moving the levers to-theright in Fig. 1, the ring sections may be expanded to a point where, thecircumference of the ring unit is greater than that of the flange orbead, to permit its removal from the receptacle. In this manner'thecover and packing ring may be lifted from the receptacle to permitcleaning 4 or for emptying or filling the same. It is to be understoodthat while I have shown my invention applied to receptacles forcontracting the ring including levers pivhaving openings of the samediameter as the inner diameter of the receptacle, the invention isequally applicable to receptacles hav-' ing restricted openings.

It will also be observed that by my invention the full removable covermay be clamped easily on the receptacle in fluid sealing contact and maybe removed easily without the aid of tools. 1

In my copending applications Serial Numbers 423,333, 423,335 and 423,336all filedon January 25, 1930, I have disclosed several ofher'types ofclosures for metallic recepta- 0 es.

Various changes may be made in the details of construction andarrangement of parts without departing from the spirit of the in ventionor the scope of the appended claims.

I claim- Y 1. The combination with a metallic receptacle having a beadrolled about its open end, and a removable cover for said receptaclehaving a marginal flange fitting over the bead, of a contractiblechanneled segmental clamping ring having walls engageable with theflange and the bead for pressing the same together when the ring iscontracted, and means for contracting the ring including leverspivotally connected to theends of .one ring segment and links pivotallyconnected to the ends of another ring segment, and to said respectivelevers.

2. The combination with a metallic receptacle having a bead rolled aboutits open end, and a removable cover for said receptacle having amarginal flange, fitting over the bead, of a contractible channeledsegmental clamping ring having walls engageable with the flange and thebead for pressing the same together when the ring is contracted, andmeans otally connected to the endsof one ring segment and linkspivotally connected to the ends of another ring segment, and to said resective levers, and shoes carried by the sai leno vers and engageablewith the flange to exert a lateral pressure on the flange when the ringis contracted.

3. The combination with a metallic receptacle having a bead rolledaboutits open end, and a removable cover for said receptacle having amarginal flan e. fitting over the bfi8.d.,.fl a contractible c anneledse ental clam ing ring having walls engagea 1e with the ange and thebead-for pressing the same together when the rin is contracted, andhaving lugs projecting inwardly of the ring, and means for contractingthe ring including levers pivotally connecting certain of said lugs onone ring segment, and links pivotally connected to certain other of saidlugs on another ring segment and to said respective levers.

4. A clampi g device for a metallic receptacle having a bead rolledabout its open end 130 and a cover having a flange fitting over thebead, including a contractible, segmental, channeled clamping ringhaving walls engageable with the flange and the bead for pressing thesame together when the ring is contracted and means for contracting thering including levers pivotally connected to the ends of one ringsegment and links pivotally connected to the ends of another ring sement, and to said res ective levers. I testimony whereo I hereunto aflixmy signature.

Y VERNON E. CORNELL.

